While doing pair programming in Intellij IDEA, there seems to be places in the code where when I place my cursor, I can't move my cursor with left/right arrow key.
When I press left arrow then I get this notification:

When I press right arrow then I get a similar notification, only with "Child Commit" instead of "Parent Commit".
It is also worth mentioning that I already have write access. It is puzzling because I still can write and delete code in these places. I just can't move my cursor with arrow keys. I can however move my cursor with arrow keys just fine in some other places.
This seems to be an issue with permissions. Can you try with Full Access permissions?
If the issues is ongoing please report it as a bug.